Add new option `[messaging].prefix` to configure prefix of RabbitMQ e… #5565

Job	Run time
Skip Duplicate Jobs Pre Job	5s
Unit Tests (chunk 1) - Python 3.8	12m 17s
Lint Checks (black, flake8, etc.) - Python 3.8	2m 38s
Unit Tests (chunk 2) - Python 3.8	9m 33s
Self-check on Python 3.8 - Python 3.8	8m 2s
Compile (pip deps, pylint, etc.) - Python 3.8	3m 28s
Unit Tests (chunk 1) - Python 3.9	11m 52s
Lint Checks (black, flake8, etc.) - Python 3.9	2m 6s
Pack Tests - Python 3.8	2m 42s
Compile (pip deps, pylint, etc.) - Python 3.9	3m 17s
Integration Tests (chunk 1) - Python 3.8	7m 43s
Unit Tests (chunk 2) - Python 3.9	9m 9s
Integration Tests (chunk 2) - Python 3.8	8m 11s
Pack Tests - Python 3.9	2m 53s
Integration Tests (chunk 1) - Python 3.9	7m 49s
Integration Tests (chunk 2) - Python 3.9	8m 1s
Slack notification for failed master builds	4s
	1h 39m 50s

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